COSMOGAS ECOTWIN, Инструкция по установке, эксплуатации и обслуживанию

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ecotwin
COSMOGAS
5 - OPERATION
Figure 5-9 - Wiring diagram with one heating/cooling circuit, DHW, buffer tank and a boiler
5.5.1 - Configuration for one heating/cooling
circuit, DHW, a buffer tank and a boiler
After creating the hydraulic system as shown in Figure 5-8 and the electrical
system as shown in Figure 5-9, configure the appliance as follows:
1.- In the home page of the display, press the “ Settings” icon ( detail “H”
of Figure 8-1);
2.- Enter the “USER” menù (section 8.2.8) and select “Permission level”;
3.- Enter the password “87654321” for the Installer level and press OK;
4.- Go back and enter the “WORKING MODE” menù (section 8.2.9);
5.- Using the green tick, enable the unit to produce domestic hot water,
heating and/or cooling;
6.- Go to second page of the menù and set “Heating / cooling switch”
to “External signal control”. Switching takes place only via remote
command “17” for cooling or “18” for heating;
7.- Exit the “WORKING MODE” and select “WATER PUMPS” menù;
8.- To configure the pump outputs so that the circuits work according to
the status of inputs “17” and “18”, it is necessary:
a.- Select “Working mode of circulation pump P0” and set it to “OFF
with compr.”;
b.- Go to the next page and put the check mark to “Buffer tank”,
enabling it;
c.- Put the check mark in “P1 for heating operation ” and, if previously
enabled, also enable “P1 for cooling operation”;
9.- Exit “WATER PUMPS” and select “DHW” menù;
10.- Set the DHW setpoint temperature in “ Setpoint DHW” parameter;
11.- Exit this menù and enter in “ZONE 1” menù:
a.- If the cooling function is enabled, select “Set temp. for cooling (fix
flow water temperature)” and set the setpoint temperature;
b.- If you want to adjust the heating temperature via outdoor reset,
select “Heating (HC1)” and complete the following parameters as
described in section 8.2.1;
c.- If the “Heating (HC1)” has not been selected, set the appropriate
set point temperature on the “Set temp. for heating (fix flow water
temperature)”;
12.- Exit this menù and select “BACK-UP”;
13.- Tick on “Backup heating sources for sanitary hot water” so that the heat
pump can call resistance “9” if it is unable to bring the domestic hot water
tank to the required temperature within a certain number of minutes;
14.- Select “Priority for backup heating sources (HWTBH)” and set it
to “Higher than AH” (in this way, the resistance “35” in Figure 6-22
have priority, which is inside the heat pump);
15.- Access the boiler (Mydens B / Novadens B / Q30B) and set the
domestic hot water to a set point 5 ° C lower than the domestic hot
water set point as set in the previous step in point 10;
16.- Access the boiler (Mydens B / Novadens B / Q30B), disable the
outdoor reset and set the heating to a set point greater than or equal
to that of the heat pump as set in the previous step in point 11.
After this configuration, the unit is able to:
- Domestic hot water production in priority over heating / cooling;
- Be called in heating by closing contact “18”;
- Be called in cooling by closing contact “17”;
- Call the boiler as a supplement to heating and domestic hot water
production whenever the heat pump fails to reach the domestic hot
water set point and / or the heating set point within a certain period
of time.